sieve number 中文意思是什麼

sieve number 解釋
篩框號；篩格號
  • sieve : n. 1. （細眼）篩。2. （約裝一 bushel 的）粗筐。3. 〈比喻〉嘴松的人，守不住秘密的人，嘴不嚴的人。vt. 篩，篩選。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. Abstract : the effects of sodium hydroxide concentration and chlorination temperature on effective chlorine content of calcium hypochlorite were tested. the effects of mesh number of standard sieve on effective chlorine content of calcium hypochlorite were tested. the retrieval technology of effective chlorine in mother liquor of calcium hypochlorite was researched, and the effects of cycle number on effective chlorine content of calcium hypochlorite were tested. the results indicate that when sodium hydroxide concentration is 333. 3 g / l, and chlorination temperature is 20, the effective chlorine content of calcium hypochlorite is highest, that when mesh number of standard sieve is 180 mesh, the effective chlorine content of calcium hypochlorite is higher, but the passing sieve rate is not too low, that the cycle number has no remarkable effect on the effective chlorine content of calcium hypochlorite, and the effective chlorine content of calcium hypochlorite is basically above 80 %

    文摘:測試了燒堿質量分數和氯化溫度對漂粉精有效氯含量的影響，測試了分鹽用標準篩目數對漂粉精有效氯含量和過篩率的影響.研究了漂粉精母液中有效氯的回用工藝流程，並測試了循環次數對漂粉精有效氯含量的影響.結果表明，燒堿質量分數為25 、氯化溫度為20時，漂粉精的有效氯含量最高；標準篩目數為180目時，漂粉精的有效氯含量較高而過篩率不太低；循環次數對漂粉精有效氯含量沒有顯著影響，並且漂粉精有效氯含量基本上可以達到80以上
  2. The effects of sodium hydroxide concentration and chlorination temperature on effective chlorine content of calcium hypochlorite were tested. the effects of mesh number of standard sieve on effective chlorine content of calcium hypochlorite were tested. the retrieval technology of effective chlorine in mother liquor of calcium hypochlorite was researched, and the effects of cycle number on effective chlorine content of calcium hypochlorite were tested. the results indicate that when sodium hydroxide concentration is 333. 3 g / l, and chlorination temperature is 20, the effective chlorine content of calcium hypochlorite is highest, that when mesh number of standard sieve is 180 mesh, the effective chlorine content of calcium hypochlorite is higher, but the passing sieve rate is not too low, that the cycle number has no remarkable effect on the effective chlorine content of calcium hypochlorite, and the effective chlorine content of calcium hypochlorite is basically above 80 %

    測試了燒堿質量分數和氯化溫度對漂粉精有效氯含量的影響，測試了分鹽用標準篩目數對漂粉精有效氯含量和過篩率的影響.研究了漂粉精母液中有效氯的回用工藝流程，並測試了循環次數對漂粉精有效氯含量的影響.結果表明，燒堿質量分數為25 、氯化溫度為20時，漂粉精的有效氯含量最高；標準篩目數為180目時，漂粉精的有效氯含量較高而過篩率不太低；循環次數對漂粉精有效氯含量沒有顯著影響，並且漂粉精有效氯含量基本上可以達到80以上
  3. By making use of two kinds of exponential sums and cohen ' s sieve, we better the lower bound concerning the number of primitive elements and also prove the existence of primitive polynomials with a1, a2 prescribed when n = 5, 6. in the remaining of the paper we study primitive elements in the form of a + a - 1 over finite fields. a counting formula is given as a result, as well as all the finite fields that do not have such elements

    本文對n = 5 ， 6兩種情形，利用有限域上的兩類特徵和估計及cohen篩法[ 5 ] [ 7 ] ，改進了[ 10 ] [ 11 ]中關于方程組本原元解個數的下界，並得到在特徵為奇的有限域上存在可預先指定前兩項系數的n次本原多項式。
  4. This is same eratosthenes who invented the " sieve " for determining whether a number is prime or not

    Eratosthenes還發明了確定一個數是否是質數的「篩子」 。
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